/*

  * Copyright 2004 Jonathan M. Lehr

  *

  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  * http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS"

  * BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language

  * governing permissions and limitations under the License.

  * 

  */

 // begin Kuali Foundation modification

 package org.kuali.rice.core.util;

 // end Kuali Foundation modification

 import java.lang.reflect.Array;

 /**

  * begin Kuali Foundation modification

  * This class sets the value of an element of an array of primitives at the supplied index.

  * end Kuali Foundation modification

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public final class ArrayUtils {

         private ArrayUtils() {

                 throw new UnsupportedOperationException("do not call");

         }

     /**

      * Sets the value of an element of an array of primitives at the supplied index.

      * 

      * @param array An array.

      * @param type The component type of the array.

      * @param index An array index.

      */

     public static void setArrayValue(Object array, Class type, Object value, int index) {

         if (!type.isPrimitive())

             Array.set(array, index, value);

         else if (type.isAssignableFrom(Boolean.TYPE))

             Array.setBoolean(array, index, (Boolean) value);

         else if (type.isAssignableFrom(Character.TYPE))

             Array.setChar(array, index, (Character) value);

         else if (type.isAssignableFrom(Byte.TYPE))

             Array.setByte(array, index, (Byte) value);

         else if (type.isAssignableFrom(Integer.TYPE))

             Array.setInt(array, index, (Integer) value);

         else if (type.isAssignableFrom(Short.TYPE))

             Array.setShort(array, index, (Short) value);

         else if (type.isAssignableFrom(Long.TYPE))

             Array.setLong(array, index, (Long) value);

         else if (type.isAssignableFrom(Float.TYPE))

             Array.setFloat(array, index, (Float) value);

         else if (type.isAssignableFrom(Double.TYPE))

             Array.setDouble(array, index, (Double) value);

     }

     public static Object toObject(Object value) {

         if (!value.getClass().isArray())

             return value;

         Class type = value.getClass().getComponentType();

         if (Array.getLength(value) == 0)

             return null;

         if (!type.isPrimitive())

             return Array.get(value, 0);

         if (boolean.class.isAssignableFrom(type))

             return Array.getBoolean(value, 0);

         if (char.class.isAssignableFrom(type))

             return new Character(Array.getChar(value, 0));

         if (byte.class.isAssignableFrom(type))

             return new Byte(Array.getByte(value, 0));

         if (int.class.isAssignableFrom(type))

             return new Integer(Array.getInt(value, 0));

         if (long.class.isAssignableFrom(type))

             return new Long(Array.getLong(value, 0));

         if (short.class.isAssignableFrom(type))

             return new Short(Array.getShort(value, 0));

         if (double.class.isAssignableFrom(type))

             return new Double(Array.getDouble(value, 0));

         if (float.class.isAssignableFrom(type))

             return new Float(Array.getFloat(value, 0));

         return null;

     }

     public static Object toString(Object array, Class type) {

         if (boolean.class.isAssignableFrom(type))

             return Boolean.toString(((boolean[]) array)[0]);

         if (char.class.isAssignableFrom(type))

             return Character.toString(((char[]) array)[0]);

         if (byte.class.isAssignableFrom(type))

             return Byte.toString(((byte[]) array)[0]);

         if (int.class.isAssignableFrom(type))

             return Integer.toString(((int[]) array)[0]);

         if (long.class.isAssignableFrom(type))

             return Long.toString(((long[]) array)[0]);

         if (short.class.isAssignableFrom(type))

             return Short.toString(((short[]) array)[0]);

         if (double.class.isAssignableFrom(type))

             return Double.toString(((double[]) array)[0]);

         if (float.class.isAssignableFrom(type))

             return Float.toString(((float[]) array)[0]);

         return ((String[]) array)[0];

     }

 }